Refrigerator door control method and device and refrigerator

Abstract

The invention discloses a control method and device for a refrigerator door and a refrigerator. The control method for the refrigerator door comprises the steps that state information of the refrigerator door is obtained; when it is obtained that the box door is in a closed state according to the state information of the box door, rotation information of the rotating piece is obtained through detection of the angle detection assembly. When it is obtained that the rotating part rotates in the first rotating direction according to the rotating information, first angle information, detected by the angle detection assembly, of rotating of the rotating part in the first rotating direction is obtained; a first angle value is obtained according to the first angle information, and when the first angle value is larger than or equal to a first threshold value, the motor is controlled to be started to drive the rotating part to rotate in the opposite direction of the first rotating direction, so that the box door rotates in the opening direction. The control method is applied to the refrigerator, the refrigerator can be simply opened, and the use experience of a user is improved.

Description

Door control methods, control devices, and refrigerators Technical Field

[0001] This disclosure relates to the field of home appliance technology, and in particular to a method for controlling a cabinet door, a control device, and a refrigerator. Background Technology

[0002] With the development of society and the economy and the improvement of people's living standards, refrigerators have gradually become an indispensable household appliance. As intelligent technology continues to expand into the home appliance field, consumers are increasingly demanding ease of use and intelligent features in their appliances. Automatic door opening and closing, as a fundamental intelligent function of refrigerators, is becoming increasingly widespread.

[0003] In related technologies, users typically control the automatic opening and closing of the refrigerator door through electronic devices, touchscreen devices, and control panels. While this achieves automatic door opening and closing, the operation is relatively complex, resulting in a poor user experience for the elderly and children. Furthermore, opening the refrigerator door is difficult when both hands are full. Summary of the Invention

[0004] In view of this, the present disclosure provides a method for controlling the refrigerator door and a refrigerator that uses the control method to easily open the refrigerator and improve the user experience.

[0005] Specifically, this disclosure is achieved through the following technical solution.

[0006] According to a first aspect of the present disclosure, a method for controlling a refrigerator door is provided. The refrigerator includes a refrigerator body, a door rotatably connected to the refrigerator body, and a drive device for driving the door to rotate relative to the refrigerator body. The drive device includes a motor, a telescopic component, and an angle detection component. The telescopic component includes a rotating member and a telescopic component that is driven to cooperate with the rotating member. The rotating member is driven to the motor to drive the telescopic component to open or close the door. The rotating member rotates in a first rotation direction to drive the door to rotate in the closing direction. The angle detection component is used to detect the rotation information of the rotating member, and the rotation information includes the rotation angle and the rotation direction.

[0007] The control methods for the cabinet door include:

[0008] Obtain the status information of the cabinet door.

[0009] When the door is closed according to the door status information, the rotation information of the rotating component is detected by the angle detection component.

[0010] When the rotation information indicates that the rotating component is rotating in the first rotation direction, the angle detection component detects the first angle information of the rotating component rotating in the first rotation direction.

[0011] The first angle value is obtained based on the first angle information. When the first angle value is greater than or equal to the first threshold, the motor is started to drive the rotating part to rotate in the opposite direction of the first rotation direction so that the door rotates in the opening direction.

[0012] The technical solution disclosed herein will be further explained below.

[0013] In one embodiment, after obtaining the first angle value based on the first angle information, the control method further includes:

[0014] When the first angle value is less than the first threshold, the motor is in a stopped state.

[0015] In one embodiment, the closed state includes the door being in a first initial position, and when the door is in the first initial position, the rotating component is in a second initial position. The process of obtaining the first angle value using the first angle information includes:

[0016] When the rotating part is in the second initial position, the angle of the rotating part detected by the angle detection component is set as the initial angle.

[0017] The rotation angle detected by the angle detection component when the rotating part rotates from the second initial position to the first rotation direction and stops is set as the termination angle.

[0018] The first angle value is obtained by subtracting the initial angle from the termination angle.

[0019] In one embodiment, before controlling the motor to start, the control method further includes:

[0020] The motor is then started when the recovery time of the rotating component from the stop position to the second initial position is less than the second threshold.

[0021] In one embodiment, the motor is not controlled to start when the recovery time is greater than or equal to a second threshold.

[0022] In one embodiment, the telescopic member includes a starting position, and the refrigerator further includes a position detection component for detecting the position information of the telescopic member. The process of obtaining the state information of the refrigerator door includes:

[0023] Obtain the first detection information from the location detection component.

[0024] According to the first detection information, when the telescopic component is in the initial position, the door is in the closed state.

[0025] In one embodiment, the control method further includes:

[0026] Enter calibration mode for the door and acquire the first detection information from the position detection component.

[0027] When the telescopic component is in the initial position according to the first detection information, the rotation angle of the rotating component detected by the angle detection component is set as the initial closing angle of the door.

[0028] The door is controlled to rotate based on the initial closing angle of the door and the second detection information obtained by the angle detection component.

[0029] In one embodiment, the telescopic member includes an end position disposed relative to the starting position, and the control method further includes:

[0030] Obtain the first detection information from the location detection component.

[0031] When the telescopic component is in the termination position based on the first detection information, the motor is controlled to stop.

[0032] In one embodiment, the process of rotating the cabinet door in the opening direction further includes:

[0033] The second angle information of the rotating part rotating in the opposite direction of the first rotation direction is obtained by the angle detection component.

[0034] The second angle value is obtained based on the second angle information. When the second angle value is greater than or equal to the third threshold, the motor is controlled to stop.

[0035] According to a second aspect of the present disclosure, a control device is provided, the control device including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the control method of any of the above embodiments.

[0036] According to a third aspect of the present disclosure, a refrigerator is provided. The refrigerator includes a cabinet, a door rotatably connected to the cabinet, a drive device for driving the door to rotate relative to the cabinet, and a control device as described in the above embodiments. The drive device includes a linkage mechanism, a motor, and a telescopic assembly. The telescopic assembly includes a rotating member and a telescopic member that drives the rotating member. The rotating member is drively connected to the motor to drive the telescopic member to open or close the door via the linkage mechanism. The door is provided with an elastic sealing member that seals with the cabinet. The control device is communicatively connected to the drive device and is capable of controlling the drive device to open or close the cabinet.

[0037] The technical solution disclosed herein will be further explained below.

[0038] In one embodiment, the linkage mechanism includes a first mounting member fixedly connected to the housing, a second mounting member fixedly connected to the housing door, and a linkage assembly disposed between the first and second mounting members. The first mounting member is fixedly connected to the housing, and the second mounting member is fixedly connected to the housing door, allowing the housing door to rotate relative to the housing to open or close the housing. The second mounting member swings relative to the first mounting member via the linkage assembly. The telescopic assembly also includes a drive rod connected to the telescopic member, which is movably connected to the linkage mechanism to drive the second mounting member to swing relative to the first mounting member.

[0039] In one embodiment, the driving device further includes a carrier and an angle detection component. The carrier includes a first end and a second end disposed opposite to the first end. A motor is disposed at the first end and includes an output end. A telescopic component is disposed between the output end and the second end. The angle detection component is disposed on the carrier and is used to detect the rotation angle and rotation direction of the rotating component.

[0040] In one embodiment, the telescopic member includes a starting position. The refrigerator also includes a position detection component disposed on the carrier for detecting whether the telescopic member is in the starting position.

[0041] In one embodiment, when the position detection component detects that the telescopic member is in the initial position, the signal sent by the position detection component can be used to calibrate the angle detection component.

[0042] In one embodiment, the rotating component includes a first lead screw, and the telescopic component includes a nut that is threadedly engaged with the first lead screw, the nut being slidably connected to the bearing component. The first lead screw includes a transmission end that is pulsatorically connected to the output end and a detection end that is disposed opposite to the transmission end, the detection end being disposed close to the second end, and an angle detection component being disposed between the detection end and the second end.

[0043] In one embodiment, the carrier has a receiving groove for accommodating a first lead screw and a mounting groove adjacent to the receiving groove along the axial direction of the first lead screw. The first lead screw is rotatably disposed in the receiving groove, and the lead screw nut is slidably engaged with the receiving groove. The angle detection assembly includes an encoder, which is mounted in the mounting groove for detecting the rotation angle of the detection end.

[0044] In one embodiment, the first lead screw forms a clearance space with the inner bottom wall of the receiving groove, and the position detection component is located in the clearance space and spaced apart from the lead screw nut.

[0045] In one embodiment, the telescopic member further includes an ending position spaced apart from the starting position along the moving direction of the telescopic member. The position detection component further includes a first position detection element and a second position detection element disposed on the carrier member. The first position detection element is used to detect whether the telescopic member is at the starting position. The second position detection element is used to detect whether the telescopic member is at the ending position.

[0046] In one embodiment, both the first and second position detection elements include a transmitting end and a receiving end spaced apart from the transmitting end to form a mating gap. The telescopic element has a protrusion. When the telescopic element is in the starting or ending position, the protrusion is inserted into the mating gap to separate the transmitting end and the receiving end. When the telescopic element is in a position other than the starting or ending position, the protrusion is removed from the mating gap.

[0047] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0048] When the refrigerator automatically opens or closes its door, a motor drives a rotating component, causing it to rotate and transmit power to a telescopic component. This, in turn, drives the telescopic component to open or close the door. During use, the refrigerator acquires the door's status information. When the door is closed, an angle detection component checks whether the rotating component is rotating in a first rotation direction. If it is, the component detects the angle of rotation. When this angle is greater than or equal to a first threshold, the motor starts, causing the rotating component to rotate in the opposite direction, opening the door. Similarly, when the user wants to open the door, pressing it activates a resilient seal that engages with the refrigerator body, causing the door to continue rotating in the closing direction, which in turn drives the rotating component to rotate in the first rotation direction. The angle detection component obtains the initial angle information of the rotating component to determine the initial angle value, which is the angle at which the door rotates in the closing direction. When the door rotates at an angle greater than a preset angle, the motor is activated to automatically open the door. When the refrigerator door is closed, the user can open it by pressing the door to rotate it a certain angle. This simple opening method improves the user experience.

[0049] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0050] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0051] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 is a schematic diagram of the structure of a refrigerator according to an embodiment.

[0053] Figure 2 is a schematic diagram of the refrigerator shown in Figure 1 in the closed state.

[0054] Figure 3 is a schematic diagram of the drive device of the refrigerator shown in Figure 1.

[0055] Figure 4 is a schematic diagram of the drive device shown in Figure 2.

[0056] Figure 5 is a cross-sectional view of a drive device according to an embodiment.

[0057] Figure 6 is a partially enlarged structural diagram of the drive device shown in Figure 5.

[0058] Figure 7 is a schematic diagram of the drive device of the refrigerator shown in Figure 1.

[0059] Figure 8 is a cross-sectional view of a drive device according to an embodiment.

[0060] Figure 9 is a partially enlarged structural diagram of the drive device shown in Figure 8.

[0061] Figure 10 is a schematic diagram of the structure of the rotating component and the angle detection assembly shown in one embodiment.

[0062] Figure 11 is a partially enlarged structural diagram of the drive device shown in Figure 8.

[0063] Figure 12 is a schematic diagram of the telescopic mechanism shown in one embodiment.

[0064] Figure 13 is a schematic diagram of the telescopic mechanism shown in one embodiment.

[0065] Figure 14 is a flowchart of a control method according to an embodiment.

[0066] Figure 15 is a flowchart of a control method according to an embodiment.

[0067] Figure 16 is a schematic diagram of the structure of a refrigerator according to an embodiment.

[0068] Figure 17 is a half-sectional view of the refrigerator shown in Figure 16 in DD.

[0069] Figure 18 is a schematic diagram of the refrigeration principle of the refrigerator shown in Figure 16.

[0070] Explanation of the reference numerals in the attached figures.

[0071] 1. Refrigerator; 10. Door; 11. Elastic seal; 20. Cabinet body; 21. Freezer compartment; 22. Refrigerated compartment; 23. Air duct; 30. Control device; 40. Drive device; 41. Linkage mechanism; 411. First mounting component; 412. Second mounting component; 413. Linkage assembly; 42. Telescopic mechanism; 4210. Bearing component; 4211. First end; 4212. Second end; 4213. Receiving slot; 4214. Mounting slot; 4220. Motor; 4221. Output end; 4230. Telescopic assembly; 4231. Rotating component; 4232. Telescopic component; 4233. First lead screw; 4234, Nut; 4235, Drive gear; 4236, Driven rack; 4240, Angle detection assembly; 4241, Encoder; 4250, First position detection element; 4251, Transmitter; 4252, Fit clearance; 4253, Receiver; 4260, Drive rod; 4270, Second position detection element; 401, Starting position; 402, Transmission end; 403, Detection end; 404, Clearance space; 405, Protrusion; 406, End position; 407, Nut; 408, Second lead screw; 50, Compressor; 60, Condenser; 70, Evaporator; 80, Throttling assembly. Detailed Implementation

[0072] The technical solutions in the embodiments (or "implementations") of this disclosure will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0073] If this disclosure uses terms relating to directional indications or positional relationships (e.g., up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, terms such as "first" and "second" in this disclosure are used only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0074] With the development of society and the economy and the improvement of people's living standards, refrigerators have gradually become an indispensable household appliance. As intelligent technology continues to expand into the home appliance field, consumers are increasingly demanding ease of use and intelligent features in their appliances. Automatic door opening and closing, as a fundamental intelligent function of refrigerators, is becoming increasingly widespread.

[0075] In related technologies, users typically control the automatic opening and closing of the refrigerator door through electronic devices, touchscreen devices, and control panels. While this achieves automatic door opening and closing, the operation is relatively complex, resulting in a poor user experience for the elderly and children. Furthermore, opening the refrigerator door is difficult when both hands are full.

[0076] Therefore, it is necessary to provide a control method for the door 10 and a refrigerator 1, which applies the control method to easily open the refrigerator 1 and improve the user experience.

[0077] To better understand the control method of this application, it will be illustrated using a refrigerator 1 that applies the control method.

[0078] As shown in Figure 1, in some embodiments, the refrigerator 1 includes a door 10, a cabinet 20, a control device 30, and a drive device 40. The door 10 is rotatably connected to the cabinet 20 via the drive device 40, so that the drive device 40 can drive the door 10 to open or close the cabinet 20. Thus, the control device 30 can control the drive device 40 to drive the door 10 to open or close the cabinet 20, thereby achieving automatic door opening and closing. This improves the overall intelligence of the refrigerator 1 and enhances the user experience.

[0079] The driving device 40 includes a linkage mechanism 41 and a telescopic mechanism 42. The telescopic mechanism 42 includes a motor 4220 and a telescopic assembly 4230. The telescopic assembly 4230 includes a rotating member 4231 and a telescopic member 4232 that is driven by the rotating member 4231. The rotating member 4231 is connected to the motor 4220 to drive the telescopic member 4232 to open or close the cabinet door 10 via the linkage mechanism 41. The cabinet door 10 is provided with an elastic sealing member 11 that seals with the cabinet body 20. The control device 30 is communicatively connected to the driving device 40 and can control the driving device 40 to open or close the cabinet body 20. Thus, when the refrigerator 1 automatically opens or closes the cabinet door 10, the motor 4220 drives the rotating member 4231, causing the rotating member 4231 to rotate and drive the telescopic member 4232, thereby driving the telescopic member 4232 of the telescopic assembly 4230 to open or close the cabinet door 10, thereby achieving automatic opening or closing of the cabinet door 10.

[0080] Furthermore, as shown in Figure 2, when the door 10 is closed, pressing the door 10 causes elastic deformation of the seal, allowing the door 10 to rotate slightly in direction a, thus enabling the user to open the door 10 by pressing. When the door is open, it rotates in direction b to open the door.

[0081] As shown in Figures 1 to 4, in some embodiments, the linkage mechanism 41 includes a first mounting member 411 fixedly connected to the housing 20, a second mounting member 412 fixedly connected to the door 10, and a linkage assembly 413 disposed between the first mounting member 411 and the second mounting member 412. The second mounting member 412 swings relative to the first mounting member 411 via the linkage assembly 413. The telescopic assembly 4230 also includes a drive rod 4260 connected to the telescopic member 4232. The drive rod 4260 is movably connected to the linkage mechanism 41 to drive the second mounting member 412 to swing relative to the first mounting member 411, thereby opening or closing the door 10. Thus, when the user automatically opens or closes the door 10, the telescopic member 4232 can drive the second mounting member 412, causing the second mounting member 412 to swing relative to the first mounting member 411 via the linkage assembly 413, thereby automatically opening or closing the door 10.

[0082] It should be noted that the drive unit 40 can be installed on the door 10 or on the body 20.

[0083] As shown in Figure 5, in some embodiments, the rotating member 4231 rotates in a first rotation direction to drive the door 10 to rotate in the closing direction. The driving device 40 also includes an angle detection component 4240, which is used to detect the rotation information of the rotating member 4231, including the rotation angle and rotation direction. Thus, the angle detection component 4240 can detect the rotation angle and rotation direction of the rotating member 4231, thereby determining whether the door 10 is open or closed, and determining the stroke of the door 10.

[0084] As shown in Figure 4, in some embodiments, the telescopic mechanism 42 further includes a support member 4210, which includes a first end 4211 and a second end 4212 opposite to the first end 4211. A motor 4220 is disposed at the first end 4211, and the motor 4220 includes an output end 4221. A telescopic component 4230 is disposed between the output end 4221 and the second end 4212, and a rotating component 4231 is drively connected to the output end 4221 to drive the telescopic component 4232 to move toward or away from the second end 4212. An angle detection component 4240 is disposed on the support member 4210.

[0085] It should be noted that the "rotating component 4231 and motor 4220 transmission connection" can be directly connected to achieve a transmission connection, or they can be connected through a transmission mechanism. A direct connection can be a detachable fixed connection or a non-detachable fixed connection, as long as power transmission is achieved. Methods such as socketing, snap-fitting, integral molding, and welding are feasible in traditional technologies and can be flexibly selected according to actual application needs. For example, one component may have a non-cylindrical part, and the other component may have a mating hole for transmission with the non-cylindrical part. Non-cylindrical parts include polygonal cylinders, elliptical cylinders, semi-cylindrical parts, etc.

[0086] In one embodiment, the rotating part 4231 of the telescopic component 4230 can be integrally formed with the output end 4221 (such as the output shaft) of the motor 4220, or the rotating part 4231 of the telescopic component 4230 can be rigidly fixed with the output end 4221 (such as the output shaft) of the motor 4220 by a key.

[0087] In embodiments of this application, the rotating part 4231 of the telescopic assembly 4230 and the output end 4221 of the motor 4220 are configured to be detachable. This facilitates maintenance of the drive device 40.

[0088] The control device 30 includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the following control method.

[0089] As shown in Figure 14, the control methods include:

[0090] Obtain the status information of door 10.

[0091] When the door 10 is closed according to the status information of the door 10, the rotation information of the rotating component 4231 is detected by the angle detection component 4240.

[0092] When the rotation information indicates that the rotating component 4231 is rotating in the first rotation direction, the angle detection component 4240 detects the first angle information of the rotation of the rotating component 4231 in the first rotation direction.

[0093] The first angle value is obtained based on the first angle information. When the first angle value is greater than or equal to the first threshold, the control motor 4220 is started to drive the rotating part 4231 to rotate in the opposite direction of the first rotation direction so that the box door 10 rotates in the opening direction.

[0094] Thus, during use, the refrigerator 1 employing the above control method acquires the status information of the door 10. When the door 10 is found to be closed according to the status information, the angle detection component 4240 detects whether the rotating member 4231 is rotating in the first rotation direction. If the rotating member 4231 rotates in the first rotation direction, the angle detection component 4240 detects the first angle information of the rotating member 4231 rotating in the first rotation direction to obtain the first angle value. When the first angle value is greater than or equal to the first threshold, the control motor 4220 is started to drive the rotating member 4231 to rotate in the opposite direction of the first rotation direction, thereby rotating the door 10 in the opening direction to open the door 10. Thus, when the user wants to open the door 10, when the door 10 is closed, pressing the door 10 utilizes the elastic sealing member 11 provided with the door 10 that seals with the cabinet body 20, causing the door 10 to continue rotating in the closing direction, thereby driving the rotating member 4231 to rotate in the first rotation direction. The angle detection component 4240 can obtain the first angle information of the rotation of the rotating component 4231 to obtain the first angle value, that is, the angle at which the door 10 rotates in the closing direction. When the rotation angle of the door 10 is greater than the preset angle, the motor 4220 is started to automatically open the door 10. When the door 10 is closed, the user can open the refrigerator 10 by pressing the door 10 to rotate it by a certain angle. This method of opening the door 10 is simple and improves the user experience.

[0095] Understandably, when the rotating member 4231 rotates in the first rotation direction, it can drive the telescopic member 4232 to rotate the box door 10 in the closing direction, thereby closing the box door 10. When the rotating member 4231 rotates in the opposite direction of the first rotation direction, it can drive the telescopic member 4232 to rotate the box door 10 in the opening direction, thereby opening the box door 10.

[0096] It should be noted that the first rotation direction is direction c as shown in Figure 3.

[0097] It should be noted that there are many ways to obtain the status information of the door 10 to determine that the door 10 is in a closed state, such as the device for detecting the opening and closing of the door in a traditional refrigerator, the vision detection device, etc.

[0098] It should be noted that the control device 30 includes the controller built into the refrigerator 1. For example, control devices such as MCU (microcontroller unit), PLC (programmable logic controller), computer or single-chip microcomputer can be used to link the start and stop of the motor through the controller built into the refrigerator 1. This application does not impose any restrictions.

[0099] A processor typically controls the overall operation of a refrigerator, such as refrigeration, automatic door opening and closing, data communication, automatic drawer opening or closing, and outputting control commands. A processor may include one or more processors to execute instructions to complete all or part of the steps described above. Furthermore, a processor may include one or more modules to facilitate interaction between the processor and other components. For example, a processor may include a multimedia module to facilitate interaction between multimedia components and the processor.

[0100] The memory is configured to store various types of data to support the operation of the refrigerator 1. Examples of this data include instructions for any application or method configured to operate on the refrigerator 1, contact data, phone book data, messages, pictures, videos, etc. The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0101] It should be noted that the angle detection component 4240 can be implemented in various ways, including incremental encoder 4241, absolute encoder 4241, or magnetic encoder 4241, etc.

[0102] In one example, the angle detection component 4240 is an incremental encoder 4241. The incremental encoder 4241 has at least two pulse feedback channels. By reading the pulse feedback sequence and number, the rotation angle and rotation direction of the rotating component 4231 can be determined, thereby determining the movement direction and distance of the door 10 opening or closing.

[0103] In another example, the angle detection component 4240 is a magnetic encoder 4241. This encoder 4241 can detect the angle of the current position of the rotating component 4231. Taking a magnetic angle sensor as an example, the detection value is 0 degrees to 360 degrees. When the number of rotations of the rotating component 4231 is greater than 1 rotation, the rotation angle of the rotating component 4231 is calculated by cumulative calculation. For example, assuming the angle increases when moving in the opening direction and decreases when moving in the closing direction, when the angle is detected to be continuously increasing and the angle switches from a large value to a small value (e.g., the first detection value is 350 degrees and the second detection value is 10 degrees), the total rotation angle is recorded as 360 degrees + 10 degrees, which is 370 degrees. At the same time, the rotation angle of the rotating component 4231 can be converted into the opening angle of the door 10, thereby determining the direction and distance of the opening or closing movement of the door 10.

[0104] In some embodiments, after obtaining the first angle value based on the first angle information, the control method further includes:

[0105] When the first angle value is less than the first threshold, the motor 4220 is in a stopped state.

[0106] Thus, when the door 10 is closed, if the angle at which the user presses the door 10 to rotate further in the closing direction does not meet the set value—that is, when the first angle at which the rotating component 4231 rotates in the first rotation direction due to pressing the door 10 is less than the first threshold—then the motor 4220 is stopped, meaning the door 10 is not opened. This method avoids accidental pressing of the door 10 causing it to open automatically, thus improving the user experience.

[0107] It should be noted that the first threshold can be flexibly set according to the user's needs to meet more different scenarios.

[0108] Understandably, the setting of the first threshold is affected by the elastic seal 11. The first threshold is related to the compressibility of the elastic seal 11. For example, if the elastic seal 11 is easier to compress, the first threshold is set relatively high; if the elastic seal 11 is harder to compress, the first threshold is set relatively low.

[0109] For example, the first threshold can be selected within the range of 0.2° to 3°. This includes, but is not limited to, 0.2°, 0.5°, 0.8°, 1°, 2°, 3°, etc.

[0110] In one example, the first threshold is set to 0.5°. Thus, when the door 10 is closed, the angle detection component 4240 detects the first angle information of the rotating component 4231 rotating in the first rotation direction to obtain the first angle value. When the first angle value is greater than or equal to 0.5°, the control motor 4220 starts to drive the rotating component 4231 to rotate in the opposite direction of the first rotation direction, thereby rotating the door 10 in the opening direction to open the door 10. When the user presses the door 10 and the first angle value of the rotating component 4231 rotating in the first rotation direction is less than 0.5°, the motor 4220 stops, meaning the door 10 is not opened. This method can prevent accidental pressing of the door 10 from causing it to open automatically, thus improving the user experience.

[0111] In one example, the first threshold is set to 1°. Thus, when the door 10 is closed, the angle detection component 4240 detects the first angle information of the rotating component 4231 rotating in the first rotation direction to obtain the first angle value. When the first angle value is greater than or equal to 1°, the control motor 4220 starts to drive the rotating component 4231 to rotate in the opposite direction of the first rotation direction, thereby rotating the door 10 in the opening direction to open the door 10. When the user presses the door 10 and the first angle value of the rotating component 4231 rotating in the first rotation direction is less than 1°, the motor 4220 stops, meaning the door 10 is not opened. This method can prevent accidental pressing of the door 10 from causing it to open automatically, thus improving the user experience.

[0112] In some embodiments, the closed state includes the door 10 being in a first initial position, and when the door 10 is in the first initial position, the rotating member 4231 is in a second initial position. The process of obtaining the first angle value through the first angle information includes:

[0113] When the rotating component 4231 is in the second initial position, the angle of the rotating component 4231 detected by the angle detection component 4240 is set as the initial angle.

[0114] The rotation angle detected by the angle detection component 4240 when the rotating component 4231 rotates from the second initial position to the first rotation direction and then to the stop position is set as the termination angle.

[0115] The first angle value is obtained by subtracting the initial angle from the termination angle.

[0116] Thus, the angle detection component 4240 detects the angle of the rotating component 4231 when it is in the second initial position, which is the initial angle. Then, the angle detection component 4240 detects the angle at which the rotating component 4231 rotates from the second initial position to the first rotation direction and reaches the stop position, which is the termination angle. Subtracting the initial angle from the termination angle yields the first angle value, which is the rotation angle of the rotating component 4231, and thus the rotation angle of the door 10. This method of obtaining the first angle value is simple and easy to implement.

[0117] It should be noted that, as shown in Figure 10, when the rotating component is at position d, it is in the second initial position. When the rotating component is at position e, it is in the stopped position. The angle detection component 4240 can detect the rotation angle of the rotating component 4231 when it rotates from position d to position e in the first rotation direction, which is also the termination angle.

[0118] In some embodiments, when the door 10 closes the box body 20 and is stationary, the door 10 is in a first initial position.

[0119] It should be noted that, as shown in Figure 2, the door 10 is in the first initial position, that is, the position of the door 10 when it is stationary after being normally closed. Alternatively, it is the position of the door 10 when it is stationary after being closed and not affected by external forces.

[0120] It should be noted that, as shown in Figure 4, the rotating component 4231 is in the second initial position. As shown in Figure 7, the rotating component 4231 is in the stop position.

[0121] In some embodiments, before the motor 4220 is started, the control method further includes:

[0122] The recovery time of the rotating component 4231 from the stop position to the second initial position is less than the second threshold.

[0123] Start the 4220 control motor.

[0124] Thus, when a user leans against the door 10 for support, a certain force is applied to the door 10, causing it to rotate in the closing direction. During this process, the duration of this rotation is longer than the duration of the user pressing the door to open it. Therefore, if the user is leaning against the door 10, the recovery time of the rotating component 4231 from its stop position to its second initial position is necessarily longer than the recovery time of the user pressing the door to open it. Therefore, by setting a second threshold, when the recovery time of the rotating component 4231 from its stop position to its second initial position is less than the second threshold, it can be determined that the user is pressing the door to open it, thereby controlling the motor 4220 to start and automatically open the door 10.

[0125] Understandably, the setting of the second threshold is affected by the elastic seal 11 and the user's reaction time when pressing the door 10. The second threshold can be set according to the compression of the elastic seal 11 when the door 10 is pressed and the user's reaction time.

[0126] Understandably, the range of the second threshold is between the recovery time when the user leans against the door 10 and the recovery time when the user presses the door 10 to open it.

[0127] For example, the second threshold includes selection within a range of 0.2s to 5s. This includes, but is not limited to, 1s, 2s, 3s, 4s, 5s, etc.

[0128] In one example, the second threshold is set to 1 second. Thus, when the recovery time of the rotating component 4231 from the stop position to the second initial position is less than 1 second, it can be determined that the user is pressing the door 10 to open the door, thereby controlling the motor 4220 to start so as to automatically open the door 10.

[0129] In one example, the second threshold is set to 3 seconds. Thus, when the recovery time of the rotating component 4231 from the stop position to the second initial position is less than 3 seconds, it can be determined that the user is pressing the door 10 to open the door, thereby controlling the motor 4220 to start and automatically open the door 10.

[0130] In some embodiments, the control method further includes:

[0131] When the recovery time is greater than or equal to the second threshold

[0132] The 4220 motor is not controlled to start.

[0133] Thus, when a user leans against the door 10 for support, a certain force is applied to the door 10, causing it to rotate in the closing direction. During this process, the duration of this rotation is longer than the duration of the user pressing the door to open it. Therefore, if the user is leaning against the door 10, the recovery time of the rotating component 4231 from the stop position to the second initial position is necessarily longer than the recovery time of the user pressing the door to open it. Therefore, by setting a second threshold, when the recovery time of the rotating component 4231 from the stop position to the second initial position is greater than or equal to the second threshold, it can be determined that the user is leaning against the door 10, thereby controlling the motor 4220 to stop and prevent the door 10 from opening.

[0134] As shown in Figure 5, in some embodiments, the telescopic member 4232 includes a starting position 401 and a termination position 406 spaced apart from the starting position 401 along the moving direction of the telescopic member 4232. The refrigerator 1 also includes a position detection component for detecting the position information of the telescopic member 4232. The position detection component includes a first position detection component 4250 and a second position detection component 4270. The first position detection component 4250 is disposed on the support member 4210 and is used to detect whether the telescopic member 4232 is at the starting position 401. The second position detection component 4270 is disposed on the support member 4210 and is used to detect whether the telescopic member 4232 is at the termination position 406. Thus, by disposing of the first position detection component 4250 on the support member 4210, the first position detection component 4250 can detect whether the telescopic member 4232 is at the starting position 401 (when the telescopic member 4232 is at the starting position 401, the refrigerator door 10 is in a closed state). Therefore, the first position detection element 4250 ensures that the refrigerator 1 is in the closed position. When the telescopic element 4232 moves to the end position 406, the second position detection element 4270 can send a signal to control the motor 4220 to stop working, so as to avoid damaging the refrigerator 1 by opening the door 10 too wide.

[0135] It should be noted that the moving direction of the telescopic component 4232 is the X direction as shown in Figure 4.

[0136] It should be noted that Figure 2 shows a schematic diagram of the telescopic member 4232 in the drive device 40 at the termination position 406, and Figure 3 shows a schematic diagram of the telescopic member 4232 in the drive device 40 at the starting position 401.

[0137] In some embodiments, the process of obtaining the status information of the door 10 includes:

[0138] Obtain the first detection information from the location detection component;

[0139] According to the first detection information, when the telescopic component 4232 is in the starting position 401, the door 10 is in the closed state.

[0140] Thus, when the door 10 is closed, the telescopic member 4232, driven by the rotating member 4231, can drive the door 10 to close the box body 20. When the door 10 is in the closed state, the telescopic member 4232 is at the starting position 401. The position detection component can detect the position information of the telescopic member 4232. During the process of obtaining the state information of the door 10, the position detection component obtains the first detection information. When the first detection information indicates that the telescopic member 4232 is at the starting position 401, it can be determined that the door 10 is in the closed state. This improves the reliability of determining whether the door 10 is in the closed state and enhances the user experience.

[0141] In related technologies, when the refrigerator 1 is initially powered on, powered on again after a power outage, in the closed position, or when the motor stalls, the position information stored by the angle detection component 4240 will differ from the actual position information of the door 10. This will reduce the reliability of automatically opening or closing the door 10 and affect the user experience. Therefore, the angle detection component 4240 needs to be calibrated.

[0142] As shown in Figure 5, in some embodiments, when the first position detection element 4250 detects that the telescopic member 4232 is in the starting position 401, the signal sent by the first position detection element 4250 can be used to calibrate the angle detection component 4240. Thus, by setting the first position detection element 4250 on the carrier 4210, when the first position detection element 4250 detects that the telescopic member is in the starting position 401, it can calibrate the angle detection component 4240. When the refrigerator 1 is initially powered on, powered on again after a power outage, in the closed position, or after the motor stalls, when the first position detection element 4250 detects that the telescopic member 4232 is in the starting position 401, the first position detection element 4250 will send a signal, and this signal can be used to calibrate the angle detection component 4240, thereby redetermining the number of rotations of the motor 4220 to determine the stroke required to open or close the door 10. This method can improve the reliability of opening or closing the door 10 when the refrigerator 1 is powered on again after a power outage, improving the user experience.

[0143] In some embodiments, the control method further includes:

[0144] Enter calibration mode for door 10 and acquire the first detection information from the position detection component.

[0145] When the telescopic component 4232 is in the starting position 401 according to the first detection information, the rotation angle of the rotating component 4231 detected by the angle detection component 4240 is set as the initial closing angle of the door 10.

[0146] Based on the initial closing angle of the door 10 and the second detection information obtained by the angle detection component 4240, the door 10 is controlled to rotate. Thus, when the refrigerator 1 enters calibration mode, the position detection component obtains the first detection information of the telescopic member 4232, and determines whether the telescopic member 4232 is in the initial position 401. When the telescopic member 4232 is in the initial position 401, the rotation angle of the rotating member 4231 detected by the angle detection component 4240 is set as the initial closing angle of the door 10. This calibrates the rotation angle of the refrigerator 1 detected by the angle detection component 4240 when the telescopic member 4232 is in the initial state, i.e., when the refrigerator 1 is closed, thereby calibrating the actual rotation angle of the refrigerator 1 with the angle detected by the angle detection component 4240. This improves the accuracy of automatically opening or closing the refrigerator 1.

[0147] There are various ways to calibrate the opening and closing angles of the cabinet door 10. In some implementations, a zero-point detection sensor can be used. When the telescopic member 4232 moves to a set position, that is, when the cabinet door 10 is opened to a certain angle, the zero-point detection sensor records the angle of the cabinet door 10 when the telescopic member 4232 moves to this set position.

[0148] For example: When the refrigerator door 10 is closed, a zero-point detection sensor is set at the position corresponding to the telescopic component 4232. When the telescopic component 4232 moves to this position, the refrigerator door 1 is just closed, and this is recorded as the door opening angle of 0°. When the door is opened to a certain angle, a zero-point detection sensor is set at the position corresponding to the telescopic component 4232 (for example, when the refrigerator door 10 is opened to 90°). When the telescopic component 4232 moves to this position, the refrigerator door 1 is just opened to 90°, and this is recorded as the door opening angle of 90°.

[0149] It should be noted that there are various ways to implement zero-point detection sensors, including photoelectric sensors, Hall effect sensors, push-button microswitches, and so on.

[0150] In other embodiments, the device for detecting the opening and closing of the door 10 of a conventional refrigerator 1 can also be used for calibration. When the refrigerator 1 detects that the refrigerator door is closed, the opening angle of the door 10 is recorded as 0°.

[0151] Understandably, the above-described calibration implementation method can be applied to refrigerator 1 alone or simultaneously, that is, refrigerator 1 can be calibrated using both of the above-described implementation methods at the same time.

[0152] It should be noted that there are multiple ways to implement the calibration mode of refrigerator 1, including but not limited to calibration upon initial power-on, calibration after power-off and re-power-on, calibration each time the door is in the closed position, calibration after motor 4220 stalls, and other situations where calibration is required to enable the door 10 to open or close automatically.

[0153] Of course, in addition to automatically entering the calibration mode as mentioned above, the user can also manually put the refrigerator 1 into calibration mode, such as by controlling the calibration mode through APP commands or by inputting control keys, etc.

[0154] When the telescopic component 4232 is in the starting position 401, the door 10 is set to be in the closed state. Then, the position calibration can be performed when the refrigerator 1 is first powered on. After power-on, it is detected whether the door 10 is closed. If the door 10 is in the closed state, the position calibration is completed.

[0155] Furthermore, the telescopic component 4232 can be calibrated every time it passes the starting position 401. After the power-on calibration is completed, the calibration data is used before the next position calibration.

[0156] However, if the position calibration is not completed during the initial power-on, there are other methods to achieve position calibration.

[0157] In some implementations, manual calibration is used, where the user is prompted to manually open and close the door 10 once to complete the position calibration. When the position detection component moves to the telescopic component 4232 at the starting position 401 or the angle detection component 4240 detects that the door 10 is closed, the calibration is indicated as complete. If the user indicates that the operation has been performed but the calibration has not been completed, a position calibration fault is reported.

[0158] In other embodiments, automatic calibration is employed. Upon inputting automatic calibration, the control box door 10 closes. If the position detection component detects that the telescopic component 4232 is in its initial state during this process, the calibration is complete. If the motor 4220 is detected to be stalled or the detection time exceeds the set time, calibration failure is reported.

[0159] In some embodiments, the telescopic member 4232 includes an end position 406 disposed opposite to the starting position 401, and the control method further includes:

[0160] Obtain the first detection information from the location detection component.

[0161] When the telescopic component 4232 is in the termination position 406 based on the first detection information, the motor 4220 is controlled to stop. Thus, when opening the refrigerator door 10, by acquiring the first detection information from the position detection component, and determining that the telescopic component 4232 is in the termination position 406 based on the first detection information, the motor 4220 is controlled to stop. This prevents the refrigerator door 10 from rotating beyond its maximum rotation angle, thus avoiding damage to the refrigerator 1 and extending its service life.

[0162] It should be noted that when the telescopic component 4232 is in the terminated position 406, the door 10 is in the open state, and the opening angle of the door 10 is the maximum angle.

[0163] As shown in Figure 15, in some embodiments, during the process of the door 10 rotating in the opening direction, the following further steps are included:

[0164] The angle detection component 4240 detects the second angle information of the rotating component 4231 rotating in the opposite direction of the first rotation direction.

[0165] The second angle value is obtained based on the second angle information.

[0166] The second angle value is greater than or equal to the third threshold.

[0167] The control motor 4220 stops. Thus, when the user wants to open the cabinet door 10, when the door 10 is closed, pressing the door 10 activates the elastic seal 11 that seals with the cabinet body 20, causing the door 10 to continue rotating in the closing direction, thereby driving the rotating component 4231 to rotate in the first rotation direction. The angle detection component 4240 can obtain the first angle information of the rotation of the rotating component 4231 to obtain the first angle value, that is, the angle at which the cabinet door 10 rotates in the closing direction. When the angle of rotation of the cabinet door 10 is greater than a preset angle, the control motor 4220 starts to automatically open the cabinet door 10. When the door 10 rotates in the opening direction, that is, the rotating component 4231 rotates in the opposite direction of the first rotation direction, the angle detection component 4240 detects the second angle information of the rotating component 4231 rotating in the direction of the first rotation direction, and thus obtains the second angle value. When the second angle value is greater than or equal to the third threshold, that is, the door 10 is opened, so the control motor 4220 is stopped, thereby controlling the door 10 to stop rotating, so as to avoid the opening angle of the door 10 being greater than the maximum opening angle of the door 10, which would damage the drive device 40.

[0168] It should be noted that the setting of the third threshold is affected by the maximum opening position of the refrigerator door 10. The third threshold is less than or equal to the maximum opening angle of the door 10. For example, the third threshold can be selected within the range of 90° to 150°, including but not limited to 90°, 100°, 110°, 120°, 130°, 140°, 150°, etc.

[0169] It should be noted that the third threshold can be flexibly set according to the user's needs to meet more different scenarios. For example, after refrigerator 1 is installed, the surrounding environment will affect the opening angle of refrigerator 1. Therefore, the user can flexibly set the third threshold according to the maximum opening angle that the refrigerator door 10 can open in that scenario.

[0170] In some embodiments, the user can customize the maximum opening angle of the door. By setting a third threshold value, when the door 10 is automatically opened, it stops opening when it reaches the third threshold, thus achieving a customized maximum opening angle. There are multiple ways to achieve the user-defined maximum opening angle.

[0171] In some implementations, users can select to customize the maximum door opening angle, which they input. For example, if a user sets the maximum opening angle to 90°, the door will automatically stop when it reaches 90° during automatic opening.

[0172] In other embodiments, the user is prompted to open the door 10 to the desired angle. After the user opens the door 10 to the desired angle, they confirm that this position is the maximum opening angle, thus completing the customization of the maximum opening angle. As shown in Figures 5 to 9 and Figure 11, in some embodiments, both the first position detection element 4250 and the second position detection element 4270 include a transmitting end 4251 and a receiving end 4253 spaced apart from the transmitting end 4251 to form a mating gap 4252. The telescopic element 4232 is provided with a protrusion 405. When the telescopic element 4232 is in the starting position 401 or the ending position 406, the protrusion 405 is inserted into the mating gap 4252 to separate the transmitting end 4251 from the receiving end 4253. When the telescopic element 4232 is not in the starting position 401 or the ending position 406, the protrusion 405 is removed from the mating gap 4252. In this way, by inserting the protrusion 405 into the mating gap 4252, the transmitting end 4251 and the receiving end 4253 are separated, thereby determining whether the telescopic member 4232 is located at the starting position 401 or the ending position 406. In this way, when the protrusion 405 is inserted into the mating gap 4252, the protrusion 405 and the mating gap 4252 do not come into contact, reducing friction and thus improving the overall lifespan.

[0173] It should be noted that the first position detection element 4250 and the second position detection element 4270 can be implemented in various ways, including pressure sensors, magnetic sensors, photoelectric sensors, infrared sensors, etc.

[0174] It should be noted that the first position detection element 4250 and the second position detection element 4270 can be assembled into a module, and then modularly assembled into the telescopic assembly 4230. Alternatively, they can be assembled separately into the telescopic assembly 4230 and then assembled into a module with the telescopic assembly 4230. This facilitates the modular assembly of the drive device 40 and improves assembly efficiency.

[0175] As shown in Figure 5, in some embodiments, the rotating member 4231 includes a first lead screw 4233, and the telescopic member 4232 includes a nut 4234 that is threadedly engaged with the first lead screw 4233. The nut 4234 is slidably connected to the bearing member 4210. The first lead screw 4233 includes a transmission end 402 that is pulsatorically connected to the output end 4221 and a detection end 403 that is disposed opposite to the transmission end 402. The detection end 403 is disposed close to the second end 4212, and the angle detection component 4240 is disposed between the detection end 403 and the second end 4212. Thus, when the motor 4220 operates, the output end 4221 is connected to the transmission end 402 of the first lead screw 4233, thereby driving the first lead screw 4233 to rotate. The telescopic member 4232 includes a nut 4234 that can cooperate with the first lead screw 4233, and the nut 4234 and the bearing member 4210 are slidably connected, allowing the telescopic member 4232 to move towards or away from the second end 4212, thereby automatically opening or closing the cabinet door 10. An angle detection component 4240 is positioned between the detection end 403 and the second end 4212 to detect the number of rotations of the first lead screw 4233, thereby determining the moving distance of the nut 4234 and thus the travel distance of the cabinet door 10. Furthermore, this arrangement allows the telescopic mechanism 42 to have a compact structure, and the angle detection component 4240 does not interfere with the sliding of the nut 4234. The angle detection component 4240 is located at the end, which also enables the thickness of the telescopic mechanism 42 to be adapted to the thickness of the door 10, making full use of the width space of the door 10.

[0176] As shown in Figures 5 and 8, in some embodiments, the carrier 4210 is provided with a receiving groove 4213 for accommodating the first lead screw 4233 and an adjacent mounting groove 4214 adjacent to the receiving groove 4213 along the axial direction of the first lead screw 4233. The first lead screw 4233 is rotatably disposed in the receiving groove 4213, and the nut 4234 is slidably engaged with the receiving groove 4213. The angle detection assembly 4240 includes an encoder 4241, which is installed in the mounting groove 4214 for detecting the rotation angle of the detection end 403. Thus, the first lead screw 4233 is disposed in the receiving groove 4213 of the carrier 4210, and an adjacent mounting groove 4214 is provided in the receiving cavity along the axial direction of the first lead screw 4233 for mounting the encoder 4241 in the mounting groove 4214 to detect the rotation angle of the first lead screw 4233. This arrangement allows the telescopic mechanism 42 to have a compact structure, saving its occupied space.

[0177] It should be noted that the axial direction of the first lead screw 4233 is the X direction as shown in Figure 4.

[0178] As shown in Figures 5 and 8, in some embodiments, the first lead screw 4233 and the inner bottom wall of the receiving groove 4213 form a clearance space 404, and the first position detection element 4250 is located in the clearance space 404 and spaced apart from the lead nut 4234. Thus, by placing the first position detection element 4250 in the clearance space 404 formed by the first lead screw 4233 and the inner bottom wall of the receiving groove, the telescopic mechanism 42 can be made compact, and the first position detection element 4250 is also spaced apart from the lead nut 4234, avoiding interference with the movement of the lead nut 4234.

[0179] As shown in Figure 12, in some embodiments, the rotating member 4231 includes a driving gear 4235, and the telescopic member 4232 includes a driven rack 4236 meshing with the driving gear 4235. The driving gear 4235 is fixedly connected to the output end 4221 and can be driven to rotate by the output end 4221. The driven rack 4236 is fixedly connected to the telescopic member 4232, and the driving gear 4235 and the driven rack 4236 mesh and transmit power. Thus, when the door 10 is automatically opened or closed, the motor 4220 operates, and its output end 4221 drives the driving gear 4235 to rotate. The driven rack 4236 meshes and transmits power with the driving gear 4235, thereby driving the driven gear to reciprocate along the support member 4210. The driven rack 4236 is fixedly connected to the telescopic member 4232, which drives the telescopic member 4232 to reciprocate along the bearing member 4210 to realize the automatic opening or closing of the box door 10.

[0180] As shown in Figure 13, in some embodiments, the rotating member 4231 includes a nut 407, the telescopic component 4230 includes a second lead screw 408 that is threadedly engaged with the nut 407, the nut 407 is fixedly connected to the output end 4221 and can be rotated by the output end 4221, the second lead screw 408 is fixedly connected to the telescopic member 4232, the second lead screw 408 is threadedly engaged with the nut 407, and the bearing member 4210 abuts against the telescopic member 4232 to restrict the rotation of the telescopic member 4232. Thus, when the cabinet door 10 is automatically opened or closed, the output end 4221 of the motor 4220 is fixedly connected to the nut 407, so that the output end 4221 drives the nut 407 to rotate. The nut 407 is threadedly connected to the second lead screw 408, and the second lead screw 408 is fixedly connected to the telescopic member 4232. The bearing member 4210 abuts against the telescopic member 4232 to restrict the rotation of the telescopic member 4232, so that the telescopic member 4232 can reciprocate along the bearing member 4210 under the rotation of the nut 407, thereby realizing the automatic opening or closing of the cabinet door 10.

[0181] As shown in Figures 16 to 18, in some embodiments, the refrigerator 1 further includes a compressor 50, a condenser 60, an evaporator 70, and a throttling device 80. The cabinet 20 also includes a freezer compartment 21 and a refrigerator compartment 22. The compressor 50, condenser 60, evaporator 70, and throttling device 80 are respectively disposed in the cabinet 20, and at least a portion of the evaporator 70 is disposed within the freezer compartment 21.

[0182] As shown in Figure 18, when the refrigerator 1 is running, the compressor 50 outputs high-temperature, high-pressure gaseous refrigerant, which is then delivered to the condenser 60. The condenser 60 condenses the high-temperature, high-pressure gaseous refrigerant into medium-temperature, high-pressure refrigerant. This medium-temperature, high-pressure refrigerant then undergoes expansion and throttling by the throttling component 80, further reducing its pressure and temperature. The medium-temperature, high-pressure refrigerant then flows out of the throttling component 80 as low-temperature, low-pressure liquid refrigerant to the evaporator 70. The low-temperature, low-pressure liquid refrigerant evaporates into gaseous refrigerant within the evaporator 70. At least a portion of the evaporator 70 is located within the freezer compartment 21, allowing the refrigerant to absorb a large amount of heat from the freezer compartment 21 during evaporation, thereby lowering the temperature within the freezer compartment 21 and facilitating the freezing of items, thus achieving the cooling function of the refrigerator 1. The refrigerant exiting the evaporator 70 is then returned to the compressor 50 to form a refrigerant circuit. In this way, the refrigerant continuously circulates in the refrigerant circuit to maintain the freezing environment of the freezer compartment 21 (e.g., below -1°C).

[0183] In some embodiments, an air duct 23 is provided between the refrigerated compartment 22 and the frozen compartment 21 to facilitate the transfer of some of the cold air from the frozen compartment 21 to the refrigerated compartment 22 through the air duct 23, so as to reduce or maintain the low temperature environment (e.g., 2°C to 8°C) of the refrigerated compartment 22.

[0184] In some embodiments, along the height direction of the refrigerator 1, the freezer compartment 21 is located below the refrigerator compartment 22. The refrigerator 1 also includes a first fan (not labeled) disposed on the cabinet 20 assembly. The air inlet or outlet of the first fan is connected to the air duct 23 for conveying a portion of the cold air from the freezer compartment 21 into the refrigerator compartment 22.

[0185] As shown in Figure 17, the height direction of refrigerator 1 is the Z-axis direction.

[0186] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A method for controlling a refrigerator door, characterized in that, The refrigerator includes a cabinet, a door rotatably connected to the cabinet, and a drive device for driving the door to rotate relative to the cabinet. The drive device includes a motor, a telescopic component, and an angle detection component. The telescopic component includes a rotating component and a telescopic component that is pulsatorically engaged with the rotating component. The rotating component is pulsatorically connected to the motor to drive the telescopic component to open or close the door. The rotating component rotates in a first rotation direction to drive the door to rotate in the closing direction. The angle detection component is used to detect the rotation information of the rotating component, including the rotation angle and the rotation direction. The control method for the cabinet door includes: acquiring the status information of the cabinet door; when the cabinet door is in the closed state according to the status information of the cabinet door, detecting the rotation information of the rotating component through the angle detection component; when the rotating component is rotating in the first rotation direction according to the rotation information, acquiring the first angle information of the rotating component rotating in the first rotation direction detected by the angle detection component; obtaining the first angle value according to the first angle information; and when the first angle value is greater than or equal to a first threshold, controlling the motor to start so as to drive the rotating component to rotate in the opposite direction of the first rotation direction so as to make the cabinet door rotate in the opening direction.

2. The control method according to claim 1, characterized in that, After obtaining the first angle value based on the first angle information, the control method further includes: when the first angle value is less than the first threshold, the motor is in a stopped state.

3. The control method according to claim 1, characterized in that, The closed state includes the door being in a first initial position, and when the door is in the first initial position, the rotating component is in a second initial position; The process of obtaining the first angle value through the first angle information includes: when the rotating component is in the second initial position, setting the angle of the rotating component detected by the angle detection component as the initial angle; The rotation angle detected by the angle detection component when the rotating component rotates from the second initial position to the first rotation direction to the stop position is set as the termination angle; the termination angle is subtracted from the initial angle to obtain the first angle value.

4. The control method according to claim 3, characterized in that, Before controlling the motor to start, the control method further includes: controlling the motor to start when the recovery time of the rotating component from the stop position to the second initial position is less than a second threshold.

5. The control method according to claim 4, characterized in that, When the recovery time is greater than or equal to the second threshold, the motor is not controlled to start.

6. The control method according to claim 1, characterized in that, The telescopic component includes a starting position, and the refrigerator also includes a position detection component for detecting the position information of the telescopic component. In the process of obtaining the status information of the door, the process includes: obtaining first detection information of the position detection component; and determining that the telescopic component is in the starting position based on the first detection information, then the door is in a closed state.

7. The control method according to claim 6, characterized in that, The control method further includes: putting the door into a calibration mode and acquiring first detection information from the position detection component; when the telescopic member is in the initial position according to the first detection information, setting the rotation angle of the rotating member detected by the angle detection component as the initial closing angle of the door; and controlling the door to rotate according to the initial closing angle of the door and the second detection information obtained by the angle detection component.

8. The control method according to claim 7, characterized in that, The telescopic component includes an end position set relative to the starting position, and the control method further includes: acquiring first detection information from the position detection component; and controlling the motor to stop when the telescopic component is in the end position based on the first detection information.

9. The control method according to any one of claims 1 to 8, characterized in that, During the process of the door rotating in the opening direction, the method further includes: detecting second angle information of the rotating component rotating in the opposite direction of the first rotation direction through the angle detection component; obtaining the second angle value based on the second angle information; and controlling the motor to stop when the second angle value is greater than or equal to a third threshold.

10. A control device, characterized in that, It includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the control method according to any one of claims 1 to 9.

11. A refrigerator, characterized in that, The device includes a housing, a door rotatably connected to the housing, a drive device for driving the door to rotate relative to the housing, and a control device as described in claim 10. The drive device includes a linkage mechanism, a motor, and a telescopic assembly. The telescopic assembly includes a rotating member and a telescopic member that drives the rotating member. The rotating member is driven by the motor to drive the telescopic member to open or close the door via the linkage mechanism. The door is provided with an elastic seal that seals with the housing. The control device is communicatively connected to the drive device and is capable of controlling the drive device to open or close the housing.

12. The refrigerator according to claim 11, characterized in that, The linkage mechanism includes a first mounting member fixedly connected to the housing, a second mounting member fixedly connected to the door, and a linkage assembly disposed between the first mounting member and the second mounting member. The first mounting member is fixedly connected to the housing, and the second mounting member is fixedly connected to the door, so that the door rotates relative to the housing to open or close the housing. The second mounting member swings relative to the first mounting member via the linkage assembly. The telescopic assembly also includes a drive rod connected to the telescopic member, and the drive rod is movably connected to the linkage mechanism to drive the second mounting member to swing relative to the first mounting member.

13. The refrigerator according to claim 11, characterized in that, The driving device also includes a carrier and an angle detection component. The carrier includes a first end and a second end opposite to the first end. The motor is disposed at the first end and includes an output end. The telescopic component is disposed between the output end and the second end. The rotating component is connected to the output end for transmission to drive the telescopic component to move toward or away from the second end. The angle detection component is disposed on the carrier and is used to detect the rotation angle and rotation direction of the rotating component.

14. The refrigerator according to claim 13, characterized in that, The telescopic component includes a starting position; the refrigerator also includes a position detection component, which includes a first position detection component disposed on the support member, for detecting whether the telescopic component is at the starting position.

15. The refrigerator according to claim 14, characterized in that, When the first position detection element detects that the telescopic element is in the starting position, the signal sent by the first position detection element can be used to calibrate the angle detection component.

16. The refrigerator according to claim 14, characterized in that, The rotating component includes a first lead screw, and the telescopic component includes a nut that is threadedly engaged with the first lead screw. The nut is slidably connected to the bearing component. The first lead screw includes a transmission end that is pulsatorically connected to the output end and a detection end that is disposed opposite to the transmission end. The detection end is disposed close to the second end, and the angle detection component is disposed between the detection end and the second end.

17. The refrigerator according to claim 16, characterized in that, The support member is provided with a receiving groove for accommodating the first lead screw and a mounting groove adjacent to the receiving groove along the axial direction of the first lead screw. The first lead screw is rotatably disposed in the receiving groove, and the lead screw nut is slidably engaged with the receiving groove. The angle detection component includes an encoder, which is installed in the mounting groove and is used to detect the rotation angle of the detection end.

18. The refrigerator according to claim 17, characterized in that, The first lead screw forms a clearance space with the inner bottom wall of the receiving groove, and the position detection component is located in the clearance space and is spaced apart from the lead screw nut.

19. The refrigerator according to claim 14, characterized in that, The telescopic member also includes an ending position spaced apart from the starting position along the moving direction of the telescopic member. The position detection component also includes a second position detection element disposed on the carrier, the second position detection element being used to detect whether the telescopic member is at the ending position.

20. The refrigerator according to claim 19, characterized in that, Both the first position detection element and the second position detection element include a transmitting end and a receiving end that is spaced apart from the transmitting end to form a mating gap. The telescopic element is provided with a protrusion. When the telescopic element is in the starting position or the ending position, the protrusion is inserted into the mating gap to separate the transmitting end and the receiving end. When the telescopic member is not in the starting position or the ending position, the protrusion moves away from the mating gap.

Images